U.S. patent number 5,988,759 [Application Number 09/056,084] was granted by the patent office on 1999-11-23 for belt integral seat of a motor vehicle with a back rest, a neck rest and a device for the safety belt guidance.
This patent grant is currently assigned to C. Rob. Hammerstein GmbH & Co. KG. Invention is credited to Heinz Bauer, Burckhard Becker, Ernst-Reiner Frohnhaus.
United States Patent |
5,988,759 |
Bauer , et al. |
November 23, 1999 |
Belt integral seat of a motor vehicle with a back rest, a neck rest
and a device for the safety belt guidance
Abstract
The structure relates to a belt integral seat of a motor vehicle
with a back rest, which has a back rest frame, onto which a carrier
of a neck rest and a device for the safety belt guidance is
arranged at the top. The device for a safety belt guidance is
attached to the carrier. The carrier is located between the device
for a safety belt guidance and the neck rest.
Inventors: |
Bauer; Heinz (Solingen,
DE), Becker; Burckhard (Solingen, DE),
Frohnhaus; Ernst-Reiner (Solingen, DE) |
Assignee: |
C. Rob. Hammerstein GmbH & Co.
KG (Solingen, DE)
|
Family
ID: |
7827826 |
Appl.
No.: |
09/056,084 |
Filed: |
April 7, 1998 |
Foreign Application Priority Data
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Apr 26, 1997 [DE] |
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197 17 666 |
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Current U.S.
Class: |
297/483;
297/410 |
Current CPC
Class: |
B60N
2/688 (20130101); B60N 2/829 (20180201); B60R
22/20 (20130101); B60R 22/26 (20130101); B60R
2022/1818 (20130101) |
Current International
Class: |
B60R
22/20 (20060101); B60R 22/26 (20060101); B60R
22/18 (20060101); B60N 2/68 (20060101); B60R
022/26 () |
Field of
Search: |
;297/391,468,410,483,484
;280/808 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Brown; Peter R.
Attorney, Agent or Firm: John Lezdey & Assoc.
Claims
What is claimed is:
1. A safety belt integral seat of a motor vehicle comprising, in
combination,
a). a backrest having a back rest frame, said back rest frame
having an upper cross piece;
b). a carrier fixed to said back rest frame extending upwards from
said upper cross piece and having a safety belt guidance;
c). a sliding block slidingly attached to said carrier and
cooperating with said safety belt guidance, so that said sliding
block is adjustable in height relative to said carrier, said
sliding block having two opposite side faces;
d). a neck rest rigidly connected to said sliding block at one side
face thereof, and a means for said safety belt guidance having an
upper deflectance point for said safety belt, said means for said
safety belt guidance being rigidly attached to said sliding block
at the opposite side face thereof, said sliding block being between
said neck rest and said safety belt guidance and said neck rest and
said safety belt guidance being mutually adjustable in height in
the guidance of said carrier.
2. The safety belt integral seat according to claim 1, wherein said
carrier extends upwards from said upper cross piece of said back
rest frame at an angle of about 90 degrees.
3. The safety belt integral seat according to claim 2, wherein said
carrier extends upwards from said upper cross piece in a plane
which is defined by said back rest frame.
4. The belt integral seat according to claim 1, wherein for said
height adjustment of said neck rest a slot is provided in said
carrier and said neck rest further comprising a neck rest tube and
a support cushion, said neck rest tube extending from said sliding
block through said slot and carrying said support cushion.
5. The belt integral seat according to claim 1, wherein said means
for safety belt guidance has a guide block, said guide block
encompassing said safety belt.
6. The belt integral seat according to claim 5, wherein said
sliding block is provided with a receiving unit for detachably
receiving said guide block, said receiving unit being arranged at
said opposite side face of said sliding block and having means for
detachably receiving and holding said guide block.
7. The safety belt integral seat according to claim 5, wherein said
guide block comprises a synthetic plastic material.
8. The safety belt integral seat according to claim 1, including
motor means attached to said sliding block for pulling in said neck
rest and said device for safety belt guidance when the back rest is
tilted forward.
9. The safety belt integral seat according to claim 1, wherein said
neck rest comprises a neck rest tube and wherein said neck rest has
a support cushion that is carried by said neck rest tube in a
one-sided manner.
Description
FIELD OF THE INVENTION
The invention relates to a safety belt integral seat of a motor
vehicle with a back rest, which has a back rest frame, onto which a
carrier of a neck rest and a device for the safety belt guidance is
arranged at the top.
BACKGROUND OF THE INVENTION
A device for a safety belt guidance is usually provided above the
upper cross piece of the back rest frame of the neck rest with belt
integral seats. According to the state of the art it is attached at
its own support piece. Because of this, there is an additional
support piece next to the carrier of the neck rest. Due to that,
the construction as a whole has a higher expenditure and also a
higher weight.
This is where the invention sets in. It is the object of the
invention to further develop belt integral seats of the above
mentioned kind in such a way that a most favorable attachment
possible of the device for a safety belt guidance is stated and
that with a development the possibility is offered, to adjust the
height of the device for a safety belt guidance in a favorable
combination with the height of the support cushion of the neck
rest.
SUMMARY OF THE INVENTION
Based on the belt integral seat of the above mentioned kind this
object is realized in such a way that the device for a safety belt
guidance is also attached to the carrier and that the carrier is
located between the device for a safety belt guidance and the neck
rest.
According to the invention the device for a safety belt guidance is
attached to the carrier, which carries the neck rest. It is hereby
arranged at that side of the carrier, which is opposite of the
support cushion of the neck rest. Expressed in other words, the
carrier is located between the neck rest and the device for a
safety belt guidance. By this an additional support piece is not
necessary.
In a preferred development the carrier has a guidance for a height
adjustment of the neck rest. Furthermore, a cross-piece of the neck
rest, which carries the support cushion, is directly connected with
the device for a safety belt guidance. Due to that the height of
the support cushion and the device for a safety belt guidance can
be adjusted and locked mutually in the carrier. By this the height
of the belt guidance is changed in accordance to the height of the
support cushion. A passenger with a larger seat size will push the
neck rest further up, and the device for a safety belt guidance is
also pushed up accordingly. A passenger with a smaller seat size
will push the neck rest further down on the contrary, the same
applies to the position of the device for a safety belt
guidance.
In a further preferred development, the device for a safety belt
guidance has a device for a guide block, which encompasses the
belt, which can easily be joined with a receiver unit of the
remaining device for a safety belt guidance, especially it can be
put into the same or it can be slipped onto it. By this, the
assembly is simplified. Especially, the guide block can be
captively provided at the belt by the belt manufacturer already,
when assembling the belt, it is only connected with the receiver
unit. By this a precise guidance of the belt is achieved in the
device for a safety belt guidance. This would not be possible for
example, if a snap-in lock of the belt had to be put through the
guide block when assembled, which would lead to large measures of
the belt guidance openings of the guide block. A closed belt
guidance opening of the guide block is possible that way.
In a further, preferred embodiment the support cushion of the neck
rest is carried by a cross-piece in a one-sided manner, which
extends far from the carrier into the direction of the upper
cross-piece of the back rest frame. Hereby, the carrier is arranged
distinctly outside the center of the upper cross-piece. Due to that
the device for a safety belt guidance can be provided in the direct
vicinity of the carrier.
Further advantages and characteristics of the invention derive from
the other claims as well as the following description of a
non-restrictive embodiment of the invention, which is demonstrated
further with regard to the drawing.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1: a perspective illustration of a schematic illustration of a
belt integral seat with an area embodied in detail illustrating the
device for a safety belt guidance, the carrier and the neck rest
tube,
FIG. 2: a perspective illustration similar to FIG. 1 for the upper
area of a back rest frame with another embodiment of the carrier,
the device for a safety belt guidance and of the neck rest tube
and,
FIG. 3: an assembly picture of a guide block, a sliding block and a
section of a neck rest tube with the matching support.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
As can be seen from FIG. 1, the motor vehicle seat has a back rest,
which has a back rest frame 20. In the illustrated embodiment, it
is produced of a piece of steel tube, which is bent in a U-shape.
It has an upper cross-piece 22 and two side legs 24. At the upper
cross-piece a carrier 26 is arranged. It essentially extends in the
extension of the right, side leg, but in contrary to the same, it
is misaligned to the center of the back rest frame 20, the
misalignment amounts to about 1/5 of the entire width of the back
rest frame 20. The carrier 26 is not located exactly on the level
of the back rest frame 20, it is much rather tilted forward
slightly by 10 to 20 degrees, for example.
The carrier is manufactured of a rectangular tube. It has about 30%
of the length of the back rest frame 20. In its interior, a sliding
block 28 is movably arranged. On one hand a neck rest tube 30 is
attached and on the other a device for a safety belt guidance 32.
The carrier is aligned in such a way that two side walls extend
crosswise to the upper cross piece 22, and especially in an angle
of 90 degrees. In one of the side walls, a respective longitudinal
slot for the neck rest tube 30 is embodied. In the opposite side
wall a respective longitudinal slot for the device for a safety
belt guidance 32 is provided, this longitudinal slot is not
illustrated in FIG. 1, but can be recognized in FIG. 2.
In the manner known already, the neck rest tube 30 receives a neck
rest cushion, which is not illustrated further here, it is already
known. With reference to FIG. 3, the device for a safety belt
guidance will be referred to later.
The carrier 26 is open to the bottom. At the top it is closed by a
cap or a similar device. Below the carrier 26, an electric motor 36
with a flanged step-down gear system is attached to the back rest
frame 20. It drives a spindle 38, which is located at the side of
the carrier 26 and which practically extends over the entire length
of the same. At the sliding block 28, a nut is arranged, which is
in mesh with this spindle 38. By turning the spindle 38, the
sliding block 28 can be driven up and down. FIG. 1 illustrates the
highest possible position.
Also in the embodiment according to FIG. 2, the back rest frame 20
is manufactured of a bent metal tube with a U-shape. The carrier 26
is welded on the upper cross piece 22 with a slight tilt forward,
it is also produced of a tube with a square profile. The neck rest
tube 30 is directly attached to the sliding block 28, the same has
an arm 40, which essentially extends in the opposite direction to
the neck rest tube 30, for the embodiment of the device for a
safety belt guidance. Below this arm is a counter piece 42, during
the process of assembling it is connected with the sliding block
28, especially with its arm 40. Between the arm 40 and the counter
piece 42, a longish passage for a belt band 44 is embodied, which
is captively encompassed at the arm 40 and the sliding block 42
after joining.
FIG. 3 illustrates another possible embodiment of the sliding block
28, of the device for a safety belt guidance 32 and the neck rest
tube 30 with a holding device. The sliding block 28 is an
essentially prismatic body, which can be movably guided in the
inside of a tube with a rectangular profile. At the sliding block
28 two projections 46, which have a certain distance and a catch
shape, are embodied, they extend away from the neck rest tube 30.
The neck rest tube 30 is rigidly connected with a holding device
48, which also embodies an essentially catch shape projection of
the same measure. This can be pushed into the sliding block 28 by a
passage, which is provided in the sliding block 28, in such a way,
that the three catch shape projections lay next to each other and
that the drill-hole, which is provided in them, is in alignment
with those of the other projections. Onto these three projections a
guide block 50 is slipped, it also has a drill hole, which extends
crosswise. By means of a suitable attachment, for example a dowel
pin or a screw with a nut, the guide block is connected with the
three projections. By this the neck rest tube 30 is fastened on one
hand, and on the other hand the device for a safety belt guidance
32 is embodied.
The guide block 50 is connected with the belt band 44 right from
the beginning, it is therefore already on the belt and is delivered
by the belt manufacturer together with the finished belt. It cannot
be removed from the same without destruction.
The two catch shape projections 46 and the guide block 50
constitute the device for a safety belt guidance 32 in the
embodiment according to FIG. 3.
Preferably, the sliding block 28 is produced of synthetic material.
The motor vehicle seat according to FIG. 1 is suitable for the
driver's seat of a left wheel drive motor vehicle. The carrier 28
is in the vicinity of the outside of the motor vehicle, especially
of the center string piece, when the motor vehicle seat is already
assembled. The neck rest tube 30 extends to the center of the motor
vehicle accordingly.
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